I have a 68 SS which I converted to rear wheel discs... The process was easy enough and things seemed to go well....I then put TTII's on it and drove away.....A friend was behind me the other day and then told me my left rear wheel seems to have a wobble. I don't feel it in the car, but I put the rear on jacks, put it in gear and low and behold left and right wobble slightly....Left seems worse than right....Balance? Conversion? Any ideas? I'm inclined to pull the calipers and rotors, remount the rims right on the axle to see if its the rotor seating or not....The whole car is basically new, so troubleshooting is an ongoing process....Thanks...

How did you convert to rear disc brakes and how much did it all cost, anyway it could be your axle shaft, my dad had the same problem the tire was wobbling bad but he couldnt feel it changed the shaft and it was no more. Plus the was a easy uninstall/install.